<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script>
			var num = 1;
//			num++;
			num += 1;//===> num = num + 1;
			num += 2;//==> num = num + 2;
			
			num -= 4;//===> num = num-4;
			num *= 5;//==》 num = num * 5;
			
			num %= 3; //===> num = num%3;
			num /=7;  
			//num = num/7;
			
			
			var num = 10;
			num %=3;// num = num % 3;
			console.log(num);
		</script>
	</body>
</html>
